Fix syncthing perms

modules/nixos/syncthing.nix

@@ -52,7 +52,7 @@ in
           path = syncPath;
           devices = builtins.attrNames devices; # Share with all defined devices
           # Ensure new files are readable by the group (chmod 770 approx)
-          ignorePerms = false;
+          ignorePerms = true;
         };
       };